Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil; and deliver them who through fear of death were all their lifetime subject to bondage. Heb. 2:14, 15.
The key word for the communion service is deliverance. Deliverance from Egypt, deliverance from the guilt of sin, from the power of sin, and from a world of sin. The communion service goes clear back to Egypt--not simply to Jesus and the disciples in the upper room. The reason that they were in the upper room in the first place was in order to celebrate the Passover. They were remembering the time when the blood was put on the doorposts and the angel passed over.
You remember that night; the Israelites were going to leave at midnight. The firstborn was awake, unable to sleep, anxious that the blood be on the doorpost. And the blood on the doorpost pointed forward to the blood of Jesus. There was power in the blood, clear back in the days of Egypt. For those who placed the blood on the doorpost, there was a wonderful deliverance. And for those who refused, there was tragedy. So Jesus and His disciples met in the upper room to celebrate that deliverance.
The day after the communion service in the upper room, Jesus fulfilled all that had been a symbol from the days of Egypt until the Last Supper. The fulfillment was far greater than the symbol. Calvary was far greater than putting blood on the doorpost in the days of Egypt, as much as the reality is greater than the symbol that prefigures it. But as we look at this deliverance, and at the symbols of the Lord's Supper today, we find that it still speaks to us of deliverance. When we accept what Jesus has done for us, not only are we forgiven but we stand before God as though we had never even sinned. God offers more than forgiveness. And this good news is designed to bring peace to every heart.
There is power in the blood of Christ and in the deliverance that He brings, not only to forgive us but to change our lives as well. The deliverance that is symbolized by the communion service is available to each of us today as we accept of both His forgiveness and His power.